Delete the broken subVI and copy/drag down one of the other ones and wire it up and it is no longer broken.
Apparently that bug has been fixed for LV 2018. When I open it in LV 2018 beta, it's not broken.
It doesn't appear to be broken in 2017 SP1 either.
Rather than using the Select nodes, it would be better to use "Types Must Match", with the inputs all Variants by default. The reason being that, at the moment, the VIM doesn't work correctly if an array is wired as an input.